ATL99LA133

NTSB accident investigation · Grumman-Schweizer G-164B · Enterprise, AL · September 19, 1999

Accident · Minor injuriesLimited investigationFinal report
Date
September 19, 1999, 09:20 local (14:20 UTC)
Place
Enterprise, AL
Injuries
1 minor
Damage
Destroyed
Phase of flight
Approach
Aircraft
N6736QGrumman-Schweizer G-164B
Weather
Visual (VMC) · Day
Status
Completed · report August 3, 2000
Report
Approved by Office Director
FAA report
19990919033709A
Case key
47413

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The loss of engine power for undetermined reasons. Contributing to the severity of the accident was the in-flight collision with a tree during the forced landing.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine powerApproach - vfr pattern - final approach
Reason for occurrence undeterminedCause
Forced landingEmergency descent/landing
In flight collision with objectEmergency descent/landing
Object - tree(s)Factor

Analysis

According to the pilot, he departed Enterprise Airport with a full load of chemicals for aerial application to a nearby cotton field. Shortly after takeoff, the engine began to surge. He adjusted the propeller lever control to the 'high' position and turned the fuel boost pump 'on.' He elected to return to the airport and while on short final he observed another airplane pass beneath him. His airplane, although surging, had been producing sufficient power therefore, he executed a left 360 degree turn for spacing. When the turn was nearly complete, the engine lost all power and he maneuvered for an open field. The airplane collided with a tree and then the ground. Examination of the wreckage revealed that the wings, empennage, and fuselage were destroyed almost beyond recognition. The only recognizable portion of the engine was the power section and the entire turbine section was destroyed. A fuel sample of the Jet-A fuel used in the airplane showed no visible evidence of contamination. The airplane and engine were consumed by fire.

Factual narrative

On September 19, 1999, at 0920 central daylight time, a Grumman-Schweizer G-164B, N6736Q, collided with a tree and the ground during a forced landing following a loss of engine power in Enterprise, Alabama. The airplane was operated by the commercial pilot under the provisions of Title 14 CFR Part 137 and visual flight rules. Visual meteorological conditions prevailed at the time of the accident and no flight plan was filed for the local agricultural flight. The pilot received minor injuries and the airplane was destroyed by the subsequent post-crash fire. The flight departed Enterprise, Alabama, at approximately 0910.

According to the pilot, he departed Enterprise Airport with a full load of chemicals for aerial application to a nearby cotton field. Shortly after takeoff, the engine began to surge. He adjusted the propeller lever to "high" and turned the fuel boost pump "on", but did not adjust the power lever because torque and exhaust gas temperature appeared normal. He elected to return to the airport and while on short final he observed another airplane pass beneath him. He felt he could not land ahead of or behind the other airplane without endangering both aircraft. His airplane, although surging, had been producing sufficient power therefore, he executed a left 360 degree turn for spacing. When the turn was nearly complete, the engine lost all power and he maneuvered for an open field. He collided with a tree and then the ground. The airplane subsequently caught fire but he was able to exit the airplane with only minor injuries.

According to the FAA, examination of the wreckage revealed that the wings, empennage, and fuselage were destroyed almost beyond recognition. The only recognizable portion of the engine was the power section and the entire turbine section was destroyed. A fuel sample of the Jet-A fuel used in the airplane showed no visible evidence of contamination. The airplane and engine were consumed by fire.

Aircraft

Registration
N6736Q
Reported as
Grumman-Schweizer G-164B
Category
Airplane
Serial number
250B
Airframe hours
4,910
Engine
Garrett TPE331-43A, 575 horsepower, turbo prop
Damage
Destroyed
Fire
On-Ground
Flight
Aerial application · Part 137
Registered owner
Frank E. Albright
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · January 12, 1999 · 193 hours before
Departed
EDN

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
33
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
10,860 total · 2,340 in this make and model · 10,755 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
60° at 7 knots
Visibility
5 statute miles
Lowest ceiling
1,500 ft overcast
Temperature
73 °F, dew point 72 °F
Altimeter
29.00 inHg
Observed at
OZR, 9 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N6736Q · 1

Matched to the same aircraft by N-number and date.